CN204481148U - A kind of integrated wiring terminal and apply this terminal three-phase transformer outlet structure - Google Patents
A kind of integrated wiring terminal and apply this terminal three-phase transformer outlet structure Download PDFInfo
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- CN204481148U CN204481148U CN201520152575.5U CN201520152575U CN204481148U CN 204481148 U CN204481148 U CN 204481148U CN 201520152575 U CN201520152575 U CN 201520152575U CN 204481148 U CN204481148 U CN 204481148U
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Abstract
The utility model discloses a kind of integrated wiring terminal and apply this terminal three-phase transformer outlet structure, this integrated wiring terminal comprises insulating body, three pieces or more metallic conduction rows and ring ladder boss, the sidewall of insulating body is provided with three groups or more upper tapped blind hole and lower tapped blind holes, the top of each block metallic conduction row is equipped with installation through hole, bottom is equipped with lower installation through hole, what each piece of metallic conduction row was separated from each other is embedded on the sidewall of insulating body, and the upper installation through hole of each block metallic conduction row is relative with lower tapped blind hole position with tapped blind hole on a group of insulating body with lower installation through hole, ring ladder boss suit is connected to the middle part of insulating body, it is by upper, annular boss, middle part annular boss and lower annular boss are formed, the external diameter of upper, annular boss and lower annular boss is all less than the external diameter of middle part annular boss.The utility model solves the dispersion of three-phase transformer outlet terminal, sealing difficulty and Electrical Safety problem.
Description
Technical field
The utility model relates to a kind of integrated wiring terminal and applies the three-phase transformer outlet structure of this terminal.
Background technology
Existing oil immersion-type distribution/emitting underground transformer a/b/c phase line and the outlet of o zero line independence, divide and be listed on fuel tank cover plate, there is following problem:
The first, existing distribution/emitting underground transformer a/b/c phase line and the every phase terminal of o zero line are independently installed, and single-phase terminal passes through metallic plate, cause the eddy current loss of cover plate near terminal thus, cause fuel tank to generate heat, also can accelerate terminal and cover plate seal is aging, cause iknsulating liquid to leak;
The second, existing distribution/emitting underground transformer a/b/c phase line and the every phase terminal of o zero line divide to be listed on fuel tank cover plate independently to be installed, and four terminals have four sealing surfaces, and sealing difficulty is large, and iknsulating liquid Leakage probability is large;
3rd, existing distribution/emitting underground transformer a/b/c phase line and the every phase terminal of o zero line divide and are listed on fuel tank cover plate, and independently install sealing after leading-out wire cable, encapsulant is many;
4th, existing distribution/emitting underground transformer a/b/c phase line and o zero terminal divide and are listed on fuel tank cover plate, and connect outlet cable cabling in disorder, length differs.
Utility model content
Technical problem to be solved in the utility model is: a kind of integrated wiring terminal is provided and apply this terminal three-phase transformer outlet structure.
Solve the problems of the technologies described above, the technical scheme that the utility model adopts is as follows:
A kind of integrated wiring terminal, it is characterized in that: described integrated wiring terminal comprises insulating body, three pieces of metallic conduction rows and ring ladder boss, the sidewall of insulating body is provided with tapped blind hole and lower tapped blind hole on three groups, wherein, upper tapped blind hole is positioned at the top of insulating body, lower tapped blind hole is positioned at the bottom of insulating body, the top of each block metallic conduction row is equipped with installation through hole, bottom is equipped with lower installation through hole, what each piece of metallic conduction row was separated from each other is embedded on the sidewall of insulating body, and the upper installation through hole of each block metallic conduction row is relative with lower tapped blind hole position with tapped blind hole on a group of insulating body with lower installation through hole, ring ladder boss suit is connected to the middle part of insulating body, it is by upper, annular boss, middle part annular boss and lower annular boss are formed, and, the external diameter of upper, annular boss and lower annular boss is all less than the external diameter of middle part annular boss.
As optimal way of the present utility model, described integrated wiring terminal integrated injection molding, described insulating body and ring ladder boss are made up of thermosetting insulation material.
As optimal way of the present utility model, described integrated wiring terminal has additional one piece or more described metallic conduction row, and the sidewall of described insulating body is set up and is provided with one group or more described upper tapped blind hole and lower tapped blind hole.
Improve as one of the present utility model, described insulating body is cuboid insulator, and described integrated wiring terminal is provided with four pieces of metallic conduction rows, and what these four pieces of metallic conduction rows were separated from each other is embedded on four side wall surfaces of this cuboid insulator.
Improve as one of the present utility model, the bottom surface of described middle part annular boss is provided with the annular groove arranged around described insulating body.
Improve as one of the present utility model, the sidewall of described upper, annular boss is provided with the annular protrusion arranged around described insulating body, and this annular protrusion has semi-circular cross-section.
A kind of three-phase transformer outlet structure applying above-mentioned integrated wiring terminal, is characterized in that: described three-phase transformer outlet is configured to:
The case lid of described three-phase transformer or wall box are provided with the suitable installation through hole of the lower annular boss external diameter of aperture and above-mentioned integrated wiring terminal, the insulating body bottom of described integrated wiring terminal and lower annular boss stretch into the inside of three-phase transformer by installing through hole, on the case lid that described middle part annular boss is seated in three-phase transformer or wall box, and be provided with sealing ring in the annular groove of middle part annular boss, on the case lid that the underrun press plate mechanism of middle part annular boss is pressed abd fixed on described three-phase transformer or wall box;
The A phase line of described three-phase transformer inside, B phase line, C phase line and zero phase line are electrically connected with the external cable of corresponding phase respectively by described integrated wiring terminal, that is:
For any phase line of three-phase transformer inside, the outlet end of this internal phase wires is set with lower line ear, this lower line ear is close to the bottom of one of them metallic conduction row of described integrated wiring terminal, and the lower installation through hole arranged with perforation and this metallic conduction successively through this lower line ear lower tapped blind hole adaptive lower bolt assembly that be connected corresponding with described insulating body is fixed;
For the external cable of any phase, the end sleeve of this external cable is equipped with upper lines ear, this upper lines ear is close to described top of arranging with the metallic conduction that corresponding internal phase wires be electrically connected, and the upper installation through hole arranged with the perforation of passing this upper lines ear successively and this metallic conduction upper tapped blind hole adaptive upper bolt assembly that be connected corresponding with described insulating body is fixed.
Improve as one of the present utility model, described press plate mechanism comprises pressing plate, nut assembly and bolt; Pressing plate is provided with central through hole and outer side through hole, described upper, annular boss fits through the central through hole of pressing plate, pressing plate is made to be placed on the end face of upper, annular boss, bolt to be fixedly connected on the case lid of described three-phase transformer or wall box and through the outer side through hole of pressing plate, the adapting part that nut assembly and bolt pass pressing plate is connected, on the case lid bottom surface of described middle part annular boss being pressed abd fixed on described three-phase transformer to make pressing plate or wall box.
In order to improve the sealing property of three-phase transformer outlet structure, improve as one of the present utility model, be set with insulated tube outside the junction surface that described upper lines ear and metallic conduction are arranged, the annular protrusion that this insulated tube is seated in described integrated wiring terminal is fixed by pouring into insulation filler in inside.
In order to improve the sealing property of three-phase transformer outlet structure further, improve as one of the present utility model, described four phase external cables are sleeved in four-core fingerstall, further, four-core fingerstall and described four phase external cables junction surface to described integrated wiring terminal upper, annular boss between position be coated with heat-shrinkable T bush.
Compared with prior art, the utility model has following beneficial effect:
First, by integrated wiring terminal, by the A phase line of three-phase transformer inside, B phase line, C phase line and zero phase line, namely install through hole from same metal mouth leads to fuel tank outside to the utility model simultaneously, thus avoid the eddy current loss that phase conductor passes through the generation of fuel tank panel, also reduce the life-span of the temperature difference influence seal due to eddy current loss generation simultaneously;
The second, the utility model only need arrange an installation through hole for outlet on fuel tank, and relative to four phase conductors outlet respectively in prior art, it significantly decreases the sealing surface of outlet, reduces the risk of leakage of fuel tank;
3rd, integrated wiring terminal of the present utility model is provided with ring ladder boss, improves sealing effectiveness, greatly reduces sealing difficulty, reduces the consumption of each phase encapsulant, realizes Fast Installation sealing effectiveness;
4th, the utility model is by arranging the sealing property of insulated tube and the heat-shrinkable T bush raising three-phase transformer outlet structure being perfused with insulation filler;
5th, the utility model adopts the three-phase transformer outlet structure of integrated wiring terminal, and its outlet cable is concentrated, and cable length is consistent, and cabling is regular distinct, favourable Electrical Safety;
6th, in the utility model, the connection of cable adopts the line ear connected mode of standard, adds interchangeability when cable is changed;
In sum, the utility model solves the dispersion of three-phase transformer outlet terminal, sealing difficulty and Electrical Safety problem.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the perspective view of the three-phase transformer outlet structure of the utility model application integration binding post;
Fig. 2 is one of cross-sectional view of the three-phase transformer outlet structure of the utility model application integration binding post;
Fig. 3 is the cross-sectional view two of the three-phase transformer outlet structure of the utility model application integration binding post.
Embodiment
As shown in Figure 1 to Figure 3, integrated wiring terminal 1 integrated injection molding of the present utility model, comprise insulating body 101, four pieces of metallic conduction rows 102 and ring ladder boss 103, wherein insulating body 101 and ring ladder boss 103 are made by thermosetting insulation material.Insulating body 101 is cuboid insulator, its each side wall surface is provided with tapped blind hole 101a and lower tapped blind hole 101b on a group, wherein, upper tapped blind hole 101a is positioned at the top of insulating body 101, lower tapped blind hole 101b is positioned at the bottom of insulating body 101, the top of each block metallic conduction row 102 is equipped with installation through hole 102a, bottom is equipped with lower installation through hole 102b, what four pieces of metallic conductions row 102 was separated from each other is embedded on four side wall surfaces of insulating body 101, and the upper installation through hole 102a of each block metallic conduction row 102 is relative with lower tapped blind hole 101b position with tapped blind hole 101a on a group of insulating body 101 with lower installation through hole 102b, ring ladder boss 103 suit is connected to the middle part of insulating body 101, it is by upper, annular boss 1031, middle part annular boss 1032 and lower annular boss 1033 are formed, and, the external diameter of upper, annular boss 1031 and lower annular boss 1033 is all less than the external diameter of middle part annular boss 1032, the bottom surface of middle part annular boss 1032 is provided with the annular groove 1032a arranged around insulating body 101, the sidewall of upper, annular boss 1031 is provided with the annular protrusion 1034 arranged around insulating body 101, this annular protrusion 1034 has semi-circular cross-section.
The three-phase transformer outlet that the utility model applies above-mentioned integrated wiring terminal is configured to:
The case lid of three-phase transformer 2 or wall box are provided with the suitable installation through hole 2a of lower annular boss 1033 external diameter of aperture and claim 6 integrated wiring terminal 1, insulating body 101 bottom of integrated wiring terminal 1 and lower annular boss 1033 stretch into the inside of three-phase transformer 2 by installing through hole 2a, on middle part annular boss 1032 case lid that is seated in three-phase transformer 2 or wall box, and be provided with sealing ring 3 in the annular groove 1032a of middle part annular boss 1032, on the underrun press plate mechanism case lid that is pressed abd fixed on three-phase transformer 2 of middle part annular boss 1032 or wall box, wherein, press plate mechanism comprises pressing plate 4, nut assembly 5 and bolt 6, pressing plate 4 is provided with central through hole 4a and outer side through hole 4b, upper, annular boss 1031 fits through the central through hole 4a of pressing plate 4, pressing plate 4 is made to be placed on the end face of upper, annular boss 1031, bolt 6 to be fixedly connected on the case lid of three-phase transformer 2 or wall box and through the outer side through hole 4b of pressing plate 4, the adapting part that nut assembly 5 passes pressing plate 4 with bolt 6 is connected, on the case lid bottom surface of middle part annular boss 1032 being pressed abd fixed on three-phase transformer 2 to make pressing plate 4 or wall box.
The A phase line of three-phase transformer 2 inside, B phase line, C phase line and zero phase line (not shown) are electrically connected with the external cable 7 of corresponding phase respectively by integrated wiring terminal 1, that is:
For any phase line of three-phase transformer 2 inside, the outlet end of this internal phase wires is set with lower line ear (not shown), this lower line ear is close to the bottom of one of them metallic conduction row 102 of integrated wiring terminal 1, and fixes by the lower bolt assembly (not shown) be connected through the lower tapped blind hole 101b adaptation that the perforation of this lower line ear is corresponding with insulating body 101 with the lower installation through hole 102b of this metallic conduction row 102 successively;
For the external cable 7 of any phase, the end sleeve of this external cable 7 is equipped with upper lines ear 8, this upper lines ear 8 is close to the top that the metallic conduction be electrically connected with corresponding internal phase wires arranges 102, and fixes with the upper bolt assembly 9 be connected through the upper tapped blind hole 101a adaptation that the perforation 8a of this upper lines ear 8 is corresponding with insulating body 101 with the upper installation through hole 102a of this metallic conduction row 102 successively.
Be set with insulated tube 10 outside the junction surface that upper lines ear 8 and metallic conduction arranges 102, the annular protrusion 1034 that this insulated tube 10 is seated in integrated wiring terminal 1 is fixed by pouring into insulation filler 11 in inside.Four phase external cables 7 are sleeved in four-core fingerstall 12, and, the junction surface of four-core fingerstall 12 and four phase external cables 7 to integrated wiring terminal 1 upper, annular boss 1031 between position be coated with heat-shrinkable T bush 13.
Operation principle of the present utility model is as follows:
Due to A phase line, B phase line, C phase line and zero phase line that three-phase transformer (2) is inner, namely this four phase conductor is installed through hole 2a from same metal mouth simultaneously and is drawn, when A, B, C three-phrase burden balance, three-phase current is symmetrical, zero phase does not produce drift, neutral voltage and electric current are zero, and the sinusoidal alternating current same time respectively cancels out each other mutually, avoid single-phase conductor and pass through metal and cause the eddy current loss of fuel tank panel; When A, B, C three-phase load unbalance, zero phase produces drift, neutral voltage and electric current non-vanishing, because four phase conductors are drawn from installation through hole 2a simultaneously, avoid the load unbalanced conductor causing phase line current superposition imbalance and Zero-phase current to produce and cause pass through metal and cause the eddy current loss of fuel tank panel, also reduce the life-span of the temperature difference influence seal due to eddy current loss generation simultaneously.
The utility model does not limit to and above-mentioned embodiment; according to foregoing; according to ordinary technical knowledge and the customary means of this area; do not departing under the utility model above-mentioned basic fundamental thought prerequisite; the utility model can also make the equivalent modifications of other various ways, replacement or change, all drops among protection range of the present utility model.Such as, above-mentioned integrated wiring terminal 1 can adopt difform insulating body 101 as insulation polyhedron etc.; And for example, above-mentioned integrated wiring terminal 1 only can arrange three pieces of metallic conduction rows 102, in order to connect A, B, C three-phase conducting wire; For another example, above-mentioned integrated wiring terminal 1 can arrange the metallic conduction row 102 of five pieces or more, in order to connect A, B, C three-phase conducting wire, and the zero phase line of two or more or other need the wire that carries out drawing.
Claims (10)
1. an integrated wiring terminal, it is characterized in that: described integrated wiring terminal (1) comprises insulating body (101), three pieces of metallic conduction rows (102) and ring ladder boss (103), the sidewall of insulating body (101) is provided with tapped blind hole (101a) and lower tapped blind hole (101b) on three groups, wherein, upper tapped blind hole (101a) is positioned at the top of insulating body (101), lower tapped blind hole (101b) is positioned at the bottom of insulating body (101), the top of each block metallic conduction row (102) is equipped with installation through hole (102a), bottom is equipped with lower installation through hole (102b), on the sidewall being embedded in insulating body (101) that each piece of metallic conduction row (102) is separated from each other, and the upper installation through hole (102a) of each block metallic conduction row (102) is relative with lower tapped blind hole (101b) position with tapped blind hole (101a) on a group of insulating body (101) with lower installation through hole (102b), ring ladder boss (103) suit is connected to the middle part of insulating body (101), it is by upper, annular boss (1031), middle part annular boss (1032) and lower annular boss (1033) are formed, and, the external diameter of upper, annular boss (1031) and lower annular boss (1033) is all less than the external diameter at middle part annular boss (1032).
2. integrated wiring terminal according to claim 1, it is characterized in that: described integrated wiring terminal (1) integrated injection molding, described insulating body (101) and ring ladder boss (103) are made up of thermosetting insulation material.
3. integrated wiring terminal according to claim 1 and 2, it is characterized in that: described integrated wiring terminal (1) has additional one piece or more described metallic conduction row (102), the sidewall of described insulating body (101) is set up and is provided with one group or more described upper tapped blind hole (101a) and lower tapped blind hole (101b).
4. integrated wiring terminal according to claim 3, it is characterized in that: described insulating body (101) is cuboid insulator, described integrated wiring terminal (1) is provided with four pieces of metallic conductions row (102), and what these four pieces of metallic conductions row (102) were separated from each other is embedded on four side wall surfaces of this cuboid insulator.
5. integrated wiring terminal according to claim 4, is characterized in that: the bottom surface at described middle part annular boss (1032) is provided with the annular groove (1032a) arranged around described insulating body (101).
6. integrated wiring terminal according to claim 5, it is characterized in that: the sidewall of described upper, annular boss (1031) is provided with the annular protrusion (1034) arranged around described insulating body (101), and this annular protrusion (1034) has semi-circular cross-section.
7. an application rights requires that the three-phase transformer outlet of integrated wiring terminal described in 6 constructs, and it is characterized in that: described three-phase transformer outlet is configured to:
The case lid of described three-phase transformer (2) or wall box are provided with the suitable installation through hole (2a) of lower annular boss (1033) external diameter of integrated wiring terminal (1) described in aperture and claim 6, insulating body (101) bottom of described integrated wiring terminal (1) and lower annular boss (1033) stretch into the inside of three-phase transformer (2) by installing through hole (2a), on the case lid that described middle part annular boss (1032) is seated in three-phase transformer (2) or wall box, and be provided with sealing ring (3) in the annular groove (1032a) of middle part annular boss (1032), on the underrun press plate mechanism case lid that is pressed abd fixed on described three-phase transformer (2) at middle part annular boss (1032) or wall box,
Inner A phase line, B phase line, C phase line and the zero phase line of described three-phase transformer (2) is electrically connected with the external cable (7) of corresponding phase respectively by described integrated wiring terminal (1), that is:
For any phase line that three-phase transformer (2) is inner, the outlet end of this internal phase wires is set with lower line ear, this lower line ear is close to the bottom of one of them metallic conduction row (102) of described integrated wiring terminal (1), and fixes with the lower bolt assembly be connected through lower tapped blind hole (101b) adaptation that the perforation of this lower line ear is corresponding with described insulating body (101) with the lower installation through hole (102b) of this metallic conduction row (102) successively;
For the external cable (7) of any phase, the end sleeve of this external cable (7) is equipped with upper lines ear (8), arrange the top of (102) described in this upper lines ear (8) is close to the metallic conduction that corresponding internal phase wires is electrically connected, and fix with the upper bolt assembly (9) be connected through upper tapped blind hole (101a) adaptation that the perforation (8a) of this upper lines ear (8) is corresponding with described insulating body (101) with the upper installation through hole (102a) of this metallic conduction row (102) successively.
8. three-phase transformer outlet structure according to claim 7, is characterized in that: described press plate mechanism comprises pressing plate (4), nut assembly (5) and bolt (6), pressing plate (4) is provided with central through hole (4a) and outer side through hole (4b), described upper, annular boss (1031) fits through the central through hole (4a) of pressing plate (4), pressing plate (4) is made to be placed on the end face of upper, annular boss (1031), bolt (6) to be fixedly connected on the case lid of described three-phase transformer (2) or wall box and through the outer side through hole (4b) of pressing plate (4), the adapting part that nut assembly (5) passes pressing plate (4) with bolt (6) is connected, on the case lid bottom surface at described middle part annular boss (1032) being pressed abd fixed on described three-phase transformer (2) to make pressing plate (4) or wall box.
9. three-phase transformer outlet structure according to claim 7, it is characterized in that: be set with insulated tube (10) outside the junction surface that described upper lines ear (8) and metallic conduction arranges (102), the annular protrusion (1034) that this insulated tube (10) is seated in described integrated wiring terminal (1) is gone up and is passed through to pour into insulation filler (11) in inside and is fixed.
10. three-phase transformer outlet structure according to claim 9, it is characterized in that: described four phase external cables (7) are sleeved in four-core fingerstall (12), further, four-core fingerstall (12) and described four phase external cables (7) junction surface to described integrated wiring terminal (1) upper, annular boss (1031) between position be coated with heat-shrinkable T bush (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520152575.5U CN204481148U (en) | 2015-03-17 | 2015-03-17 | A kind of integrated wiring terminal and apply this terminal three-phase transformer outlet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520152575.5U CN204481148U (en) | 2015-03-17 | 2015-03-17 | A kind of integrated wiring terminal and apply this terminal three-phase transformer outlet structure |
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|---|---|
| CN204481148U true CN204481148U (en) | 2015-07-15 |
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| CN201520152575.5U Active CN204481148U (en) | 2015-03-17 | 2015-03-17 | A kind of integrated wiring terminal and apply this terminal three-phase transformer outlet structure |
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| CN (1) | CN204481148U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373746A (en) * | 2016-08-31 | 2017-02-01 | 广东佰昌电力设备有限公司 | Omnibearing leading-out terminal and leading-out structure of distribution transformer |
| CN106602296A (en) * | 2016-11-07 | 2017-04-26 | 国网山东省电力公司青州市供电公司 | Connection adaptor of oil-level temperature controller of transformer |
| CN107845862A (en) * | 2016-09-19 | 2018-03-27 | 苏州思科赛德电子科技有限公司 | Integral type waterproof copper bar through walls |
-
2015
- 2015-03-17 CN CN201520152575.5U patent/CN204481148U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373746A (en) * | 2016-08-31 | 2017-02-01 | 广东佰昌电力设备有限公司 | Omnibearing leading-out terminal and leading-out structure of distribution transformer |
| CN107845862A (en) * | 2016-09-19 | 2018-03-27 | 苏州思科赛德电子科技有限公司 | Integral type waterproof copper bar through walls |
| CN106602296A (en) * | 2016-11-07 | 2017-04-26 | 国网山东省电力公司青州市供电公司 | Connection adaptor of oil-level temperature controller of transformer |
| CN106602296B (en) * | 2016-11-07 | 2019-02-05 | 国网山东省电力公司青州市供电公司 | Transformer oil surface temperature controller connection adapter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Area A1, factory building, Taiji industrial town, Yinzhan management area, Longtang Town, Qingcheng District, Qingyuan City, Guangdong Province, 511500 Patentee after: Guangdong Baichang Energy Technology Co.,Ltd. Address before: 511542 area A1 of Taiji industrial city factory building, Yinzhan management area, Longtang Town, Qingcheng District, Qingyuan City, Guangdong Province Patentee before: GUANGDONG BAICHANG ELECTRIC POWER EQUIPMENT CO.,LTD. |
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| CP03 | Change of name, title or address |